InnateDB: Systems Biology of the Innate Immune Response

Homo sapiens Protein: CADPS

Summary

InnateDB Protein

IDBP-42680.7

Last Modified

2014-10-13 [Report errors or provide feedback]

Gene Symbol

CADPS

Protein Name

Ca++-dependent secretion activator

Synonyms

CADPS1; CAPS; CAPS1;

Species

Homo sapiens

Ensembl Protein

ENSP00000283269

InnateDB Gene

IDBG-42670 (CADPS)

Protein Structure

UniProt Annotation

Function

Calcium-binding protein involved in exocytosis of vesicles filled with neurotransmitters and neuropeptides. Probably acts upstream of fusion in the biogenesis or maintenance of mature secretory vesicles. Regulates catecholamine loading of DCVs. May specifically mediate the Ca(2+)-dependent exocytosis of large dense-core vesicles (DCVs) and other dense-core vesicles by acting as a PtdIns(4,5)P2-binding protein that acts at prefusion step following ATP-dependent priming and participates in DCVs-membrane fusion. However, it may also participate in small clear synaptic vesicles (SVs) exocytosis and it is unclear whether its function is related to Ca(2+) triggering (By similarity). {ECO:0000250}.

Subcellular Localization

Cytoplasmic vesicle membrane {ECO:0000250}; Peripheral membrane protein {ECO:0000250}; Cytoplasmic side {ECO:0000250}. Cell junction, synapse {ECO:0000250}. Note=Membrane-associated to vesicles. Strongly enriched in synaptic fractions. Preferentially binds to DCVs but not to SVs. Binds phosphoinosides, with a strong selectivity for PtdIns(4,5)P2 over PtdIns(3,4,5)P3. Probably localizes to different vesicles compared to CADPS2 (By similarity). {ECO:0000250}.

Disease Associations

Tissue Specificity

Specifically expressed in neural and endocrine secretory tissues. Expressed in brain and pancreas and at low level in heart. Also expressed in fetal heart, cerebellum, cerebral cortex, medulla, occipital pole, frontal and temporal lobes, and putamen, as well as weak expression in spinal cord. {ECO:0000269PubMed:12659812}.

Comments

Interactions

Number of Interactions

This gene and/or its encoded proteins are associated with 1 experimentally validated interaction(s) in this database.
They are also associated with 2 interaction(s) predicted by orthology.